Apparatus for coating bathing caps



Aug. 19, 1952 AQE. SIDNELL ET AL 2,607,317

APPARATUS FOR COATING BATHING CAPS Filed Sept. 10, 1948 INVENTORS. ALBERT E. Smwsu.

Patented Aug. 19,: 1952 I rAP-PARA'l-US =FOR COA'IINGIBATHINQG :CAPS

AlbertEfSidnralLAkron, and 'lheron 1. 'Thom'pv --son, Barberton,'-'0hio, assignors .to uzieiherling Latex Brodu'cts Company, Barherton, Ohio, ta

"corporation of Ohio September fSerialT'No. 422572 6 Claims. (Cl..v118 .107') "This invention relates to ax-n'ew and improved device 'forprocessing rubber products, 'andmore 'psrtieulerly"the varnishingpperationffor finishingrubber bathingeaps.

f Inthemanufacture of'rubberhathing 'caps the "final production operation "consists ofco'ating the cap with 'a .varni'sh "to seal 'the outside surface or the "eapthereby "imparting to-the surface a. glossy'flnish. The usual productiomm'ethod for 'thisoperaztioniistostretchtheeapovera'wooden "form block 'and'brush' the'varnish "overtheisurflacemanually.

The object of this inventionisto "provide 'me- 'chani'cal means for "azceomplishingthe:obove "described operation therebyinsuring themanuiagcture of'a; more uniform product uat'a. mueh iaster 'rate' than can :be done Joy ".the ipresent manual method.

"'The' baithing cap 'varnisher of' thisinventioniincludes a, form-block mounted 'at'the end of "a. shaftwith one or more ibrushe's adapted to "he moved into and out of contact with'aeap -placed on the"'iorm. TSprayguns orother means 'arefprovideii'for applying'the'varnish tothecaps. The

mountingltheroluteh' yoke 'base in the guidewsys, ell-es will be 'moreifully-explained in whatiollows;

Figure '8 is a. "side elevation -similar to :Elgure '5 "I -showing the loeationof the respective maehirie elements-When the brushes are' disengageii irom the form lolo'ek, parts irrelevant to itheaetion :of

the =maehine being'omitted for elarity;

Figureq is s:scthemettiw diagram of the piping 10 system including the necessary valve's; etc. to

"control-theoperation.

Referring 'to Figures 1 to of the drawin'gs, a

"form b1oek 10 is keyed to the end-"oi s; horizontal shaft Hmounted between'wstandardpillow bloek hearing -12 and =2, b'zill bearing io'ealteii in 'th'e sitioned' atequal intervals' around the form' bloek 'and "are removablyend adjus'tbly i-astened iinto handlesor control arms l-BWliih are pi-voteti on the vertical spider -l3. *A'djustment 'ls maide-possible by the brushes-bing hld between the bolts' means for applying "the varnish end movingth'e 1-1 andtheboltsl'B Whichare'threaide'dmtotapped brushes to and .from .the cap are properly 5coordinated. y

"In "the preferred "varnisher illustrated in the drawingsthere are threebrushes spacedeverily about theform bloc'k. One isaitrifie longer' than the othertwoand mztkeseontaet withthe portion or the'capwhichmovers the'axis of the-"form block. These brushes are mounted on "pivoted arms *which are actuated by =s1otted cams in a cam 'block. Moving thecamblock 'tothe rear presses the brushes'to the -'cap pla;ced'on the 'form block. Moving it forward-liftsfthebrushes out of-contat with the eap. "This cam block surrounds the shaft on which the *iorm "block "is "mounted. A "clutch is mounted to move with the cam block. On moving rearwardly it contacts a=sheaive block "and the'shaft isrotated' at high speed. The'form "block reteiteswithit. For-war'd'movementbring's "-it into contact-with a; brake which "rapidly' 'brin'gs thecap to rest. I

"The inventionwillbefiurther 'describe'cl incon- "nection with the -accompanying drawings in which: 7

"Figure '1 is a side elevation, partially broken away,"showing"the*looationof the'respeotive machine elements at aftim'e "during the='operating 'cyclewhenthebrushes are engaged;

Figure "2 is a. "fragmentary view taken on the line 2- 2of Figure 3:showingthehorse-shoe brake -'by a,ny"suitable "driving"rneansasuch "holes in theeontrdlarms 16. The opposite ends.

" of the control 'armscontalin the pins I 9 whieh are slidably -inserted in the slotted cam platesm. There are three *of "these cam plates 20 weId'e'd 5:30 -to the "periphery of a. cylinder 21 which is won- -centrical1yfitted over -the horizontal shaft l l antl free to slide over the shaft. The .:.cam :b1ock $2 2 provided with camslots n issecuredztoiaivertieal circular plate 23 also fitted slidably-and Jean'- 535 'centrieally around the shaft L theiplatefs'ibase being wlde'd to 'aiflat islidaible plate zkmounte'd *between two gu-ideways -25. .The slidable opiate '24 extends rearwardly of i the znrachine. V .7

The base or the clutch iyoke an as :slidablv s "mounted in the :gui'ciewaw z5,eandzissattaehed:to

245 plate #24 is'itransmitted Lto :the zelutch mechanism through the coil springs, Lthe ssprings zefleetivly A dampening any --sh0oks=nceurring when lithe tittietion clutch 35 engages the sheave hlock fllwhioh i's-driven'byw 'belts 31. The V beltsfare driven am'electrio motor 38,=a"reduotion gea.r? 39,a,nd a-V-*be1t tlriver shea've -10. it

I The slider plate flis aotuete'd by anagii 'eylinder located *beneath the %steel table topfl with platefithecluteiryoke andthemeans fonsll'dably *the cylind'er piston ro'd 4'6 perdl1llto the- -shoft cycle.

gaged from the sheave 36 and brought into conin the timerbox 80.

at the outmost point in the slotted cams. as indicated in Figure l. The clutch'mechanism as well as the cam block being secured to the slidable plate 24, the clutch ,moves with the cam block and at the point of the-cycle thatthe brushes are in contact with the form block, the clutch is engaged with the sheave 36. The form block I rotates with the shaft l l. The clutch is slidably fitted to shaft ll over the key illfand when the clutch engages sheave 36 the shaft II and form block are rotated at high speed.

When the air cylinder; piston rod-is forced forward, the cam block 22, cooperating with the piston rod movement slides forward'in the guideways 25. The armpins I9 travel down their respective cam slots to the inner points of the islots causing the brushes to lift from the form block l0.,- Figure 3 illustrates this stage of the The clutch 35 is simultaneously disentact with friction plate 53 on brake plate 56 attached to a'horse-shoe shaped. plate 55 which encircles the shaft I! and the reduced forward portion 56 of the clutch guideways-25 as clearly shown in Figure 2. The portion 56 of the clutch fitswithin the horse-shoe brake.

a A suitable sheet metal hood 6 0 encloses the .form block I 0 and the brushes i l. This hood has an opening 60 its front side to permit access to the form block so that a bathing cap may be readily placed onor removed from the form block. 'Two standard spray guns 6! are strategically located in the hood to spray a cap with varnish which-islater to be spread over thecap by the brushes. The spray guns 6! are fed; through conduit 62 from the varnish reservoir 62 which may belocated in any convenient position. A tray or other suitable means is pro-. vided in. the bottom of the hood to dispose, of excess spray collecting therein. suitable duct .work, not shown, containing an induced draft fan'purges the hood of the excess atomized varnish and toxic fumes that may be evolved during the operation. I

.xThe air control system is schematically shown -in Figured. A valve 10 connects the piping system with a standard industrial compressed airline, preferable pressure'being about 85 p. 5.61.

.-'A'suitable water filter or separator. H is positionedin .the'line. The high pressure airline 12' divides. into two conduits, l3 and. ,Conduit 13 divides and enters the: respective chambers of two'three-way diaphragm control valves 15 and 16 which operate the air cylinder. Conduit 14 leads into a pressure reducing valve 71. The air passing through'valveffl is reduced to apressure of preferably about 40, p. s.'i. and passesinto the chamber of a valve 18 enclosed The valve stem of valve I8. is actuatedrby a suitable timing cam (not shown) in the timer box which controls the air flow through conduit 8| into the diaphragm chambersof the control valves l and i6.

., Conduit 84 which leads from-the low pressure air line 85 beyond. t valve ll is npg tedtp a chamber of the solenoid valve 88. The solenoid valve 88, actuated by switches (not shown) automatically controlled in the timer box 80 permits the low pressure air to pass through conduits 39 to the spray guns 6! at the proper point of the cycle.

The completeoperating-cycle will now be described starting with the shaft l l and-form block actuates the timingmechanisms.

in the stalled position shown in Figure 3. The motor 38 is rotating the sheave block 36 at all times. The operator stretches a bathing cap on to the form block and presses the button 90 which This first ac- ,tuates -a switch which opens solenoid valve 88.

Piet

This causes low pressure air to pass to the spray guns 6| which spray varnish on to the cap before it starts revolving. At the proper time in the cycle the timer again actuates the valve 88, this time closing it. Substantially simultaneously, the timer will cause valve 18 to open permitting the passage of airthrough conduit Blinto the diaphragm chambers of control valves 15 and 16.

These are three-way valves. When air presses on the diaphragm of valve. 16 the three-way valve (not shown) in its base is turned to pass air thru its base into the. pipe BI and thence into. the air cylinder to force its pistonrear- Wardly. This moves the slidable plate 2d to the rear together with the cam block Z2 and'clutch mechanism'which is attached to it; This movement of the cam block presses the brushes on to the cap. The closing of the clutch startsthe shaft II revolving. This revolves the hat and thevarnish is spread uniformly over its surface. During this interval the pressure on thediaphra'gm'of valve "15 turns the.thr'eeway,"valve its base to the same position as that in'the base of the valve l6. However the pressure ,line leads into the bottom of valve 15 and into the side of the base of valve 15. Thuspressure causes the exhaust from the air' cylinder passing through the line 92 into the base of valve 75 "to be vented through the opening in the side of the base ofrvalve 15 corresponding to the opening in the base of valve 761' to'which the pres jsureline is fastened.

Pressure is maintained on the line 3| until the varnish has been uniformly spread on the bathing capand sufficient of the solvent has evaporated fromit to" permit handling of the cap for removal andpackaging. At the end of this interval the timer again actuates the valve 18, but this time to relieve the pressure on the diaphragms in valves .75 and 16. The valve in thebase ofvalve 'l5 turns and pressure isapplied through line 82 to the piston of the air cylinder. The three-way valve in the base of valve 15 turns to connect line 9! with the openingin the bottom corresponding to the opening in the bottom of valve 15 in which the pressure line is connected. v This opening in the bottom of valve lfi'serves as an exhaust. The

:slidable, plate 24 moved forward, sliding the cam block 22 so as to lift the brushes. and at the same time bringing the clutch against lthe brake surface 55. V This instantly stop the rotation of theshaft ll and th e form block." The operator removes the cap and the cycle is com-- An untreated cap is immediately. placed onthe orm block, the timer switch '90 is pressed, endin o erc i p 1 Modifications may be made in the structure disclosed. The number of brushes and spray guns may be changed. The form block may be rotatedfduring the application of varnish.

complishing like results.

What we claim is:

1. Apparatus for applying liduid surfaceicoating on a bathing cap which apparatus includes aform block over whicha bathing capflcan-be stretched, which form block is. adapted .to be rotated on a central axis, a hood enclosingthe form block, mounted adjacentthe form blockinside the hood a brush and means for moving the brush toward and away frornthe form, block, an opening in the hood to permit access to the formjblocl; for placingand removing thebathing cap,- liquid atomizing means inside the hood adapted to direct atomized liquid on the cap on the form block, means for supplying liquid to the atomizing means, and timing means and means operated thereby which (1) actuates the atomizing means for a predetermined interval whereby a quantity of liquid is deposited on the cap, and (2) actuates the means which moves the brush toward the form block and into contact with a cap on the form block after liquid is applied thereto, which brush is adapted to spread the liquid evenly over the surface of the cap during rotation of the form block.

2. A bathing cap varnisher which includes a hood, a form block therein to hold a bathing cap while being varnished, an opening in the hood through which the bathing cap can be readily placed on and removed from the form block, means for rotating the form block, a reservoir for varnish and means for supplying varnish therefrom and applying it to the surface of the bathing cap placed on the form block, means mounted inside the hood adjacent the form block.

and adapted to be moved into contact therewith to spread the varnish on the surface of a cap on the form block while the form block is rotating, cam means engaged with the spreading means to move the spreading means into contact with the cap, means for moving the cam whereby the spreading means is moved, and timing means and means operated thereby which actuates the varnish-applying means and then actuates the cam-moving means.

3. A bathing cap varnisher which includes a frame, a shaft rotatably mounted in the frame, fixed to one end of the shaft a form block adapted to hold a bathing cap in stretched condition, means fastened to the frame for applying varnish to a cap located on the form block, a hood enclosing the form block except for an opening to permit access to the form block so that a bathing cap may be readily placed on or removed from the form block, means on the frame for rotating the shaft, brushes curved to fit the contour of the form block which brushes are located around the form block, supporting means for each brush pivotally mounted on the frame adjacent the form block, a cam surrounding the shaft and held against rotation and slidable longitudinally of the shaft, cam-engaging means on the brush-supporting means which contact cam surfaces on the cam, and means on the frame for reciprocating the cam longitudinally of the shaft, the cam surfaces being adapted to pivot the brush-supporting means to swing the brushes toward and away from the form block as the cam is moved in opposite directions along to holda bathing -:c'ap '-in stretched {condition means fastened to the' 'fram'e for applyingvarni'sh to a caplocatedontheform'block, "a hood enclosing the "form block exceptfor an opening to 'permitaccess 'to "the form block -"so that a bathing capmay be readily placed on or removed from the form -block,a brush curved to 'fit the contour of the form block, brush supporting means pivotally mounted-to swing the brush toward and away from the form block, a sheave rotatably fastened tov the shaft, ,a brake maintained in spaced relation'to the sheave, positioned between the sheave .and'the ibrake a clutch keyed to the shaft and adapted to islidezlon'gitudinally thereof, a cam mounted on the frame slidably with respect to the shaft and having therein a cam surface coactively connected to the brush supporting means, and power means connected with the clutch and with the cam which power means is operable to move the clutch and cam simultaneously longitudinally of the shaft in one direction to engage the clutch with the sheave to thereby rotate the shaft and to swing the brushes into contact with the cap.

5. A bathing cap varnisher which includes a horizontal shaft, a hood open at the front with the forward end of the shaft entering the rear of the hood, a form block in the hood fastened to the forward end of the shaft, a varnish reservoir, spray means inside the hood for spraying varnish onto a bathing cap stretched over the form block, varnish-conveying means connecting the spray means with the reservoir, a sheave rotatably mounted on the shaft to the rear of the hood, drive means for rotating the sheave, brushes each having the contour of the form block arranged around the form block, brushsupporting means pivotally mounted and operable to swing the brushes away from the form block and toward it after varnish has been sprayed on a cap placed on the form block, adjustable means for fastening each brush to its respective supporting means so that the position in which the brush contacts the form block may be changed, surrounding the shaft a stationary brake spaced a short distance from the sheave, between the brake and the sheave a clutch slidably keyed to the shaft, a cam slidably mounted around the shaft and held against rotation, slotted cam surfaces in the cam engaged with portions of the brush-supporting means to operate the brush-supporting means, and slidable means fastened to both the cam and the clutch which means is'movable parallel to the shaft in order (a) to move the clutch into contact with the sheave thereby rotating the shaft and the form block, and simultaneously moving the cam so that the slotted cam surfaces thereon pivot the brush-supporting means to bring the brushes into contact with the cap, and (b) to move the clutch in the opposite direction where it contacts the brake and stops the shaft rotation and also moves the cam to lift the brushes away from the cap on the form block.

6. Apparatus for applying coating on a bathmg cap which apparatus includes a frame, a form block over which a bathing cap may be stretched, means fastened to the frame for applying varnish to a cap located on the form block, a hood enclosing the form block except for an opening to permit access to the form block so that a bathing cap may be readily placed on or removed from the form block, a shaft rotatably mounted in the frame upon which the form block is fastened, means on the frame for rotating the shaft, a cam slidably mounted around the shaft, a brush supported by the frame adjacent the form block, supporting means for the brush engaged with the cam, and means on the frame for imparting reciprocating movement to the cam 5 on the shaft to bring the brush into and out of contact withv the form block during operation of the apparatus; g

, ALBERT E. SIDNELL- THERON T. THOMPSON.

REFERENCES CITED UNITED STATES PATENTS Number- Name Date Howell Feb. 12, 1889 Schwarz May 17, 1910 Leatherbee Jan.-11, 1916 Benedict Sept. 11, 1917 Weimar Nov. 21, 1922 Voulgares July 29, 1924 Murphy June 22, 1926 Weitzman Apr. 11, 1933 Cameron et a1 Dec. 5, 1933 Hite Nov. 26, 1940 Hopkins Mar. 10, 1942 Dulken et a1 Feb; 6,-1945 

